Last night my residential area lost power for about 2 hours,
between 2-4 am. This reminded me of something, and there’s
analogies to MySQL infrastructure. Power companies have over
recent years invested a lot of money in making the supply more
reliable. But, it does fail occasionally still.

From my perspective, the question becomes: is it worth the
additional investment for the power companies? Those extra
few decimal points in reliability come at a very high cost, and
still things can go wrong. So a household (or business) that
relies on continuity has to put other measures in place anyway.
If the power company has an obligation to deliver to certain
standards, it might be more economical for them to provide
suitable equipment (UPS, small generator) to these households and
business (for free!) and the resulting setup would
provide actual continuity rather than merely higher reliability
with occasional failures. Everybody …

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